Re-thread. Solution Use the SCHMETZ SERV 7 needle Adjust needle size to the material to DIN EN 12195-2 Source: SpanSet GmbH & Co. KG Also in manufacturing of personal safety equipment the emphasis is set on safety technical aspects. Before sewing, the 2-thread converter must be attached to the upper looper. ]]The special asymmetrically shaped thread sliding area inside the eye of the needle ensures stable loop formation (also when changing the seam direction) and so avoids the possibility of negative loop formation and thread twist. TEXTURED FILAMENT THREAD is usually made from polyester and is used primarily as the looper thread for cover stitches. • The looper cover may be open, close the looper cover • Check for tangled or caught thread, which could be on the stitch fingers or feed dogs, or loopers The machine does not operate • Check to make sure that the machine is plugged in THREAD FINISHES Thread classification based on FINISHES Finishes are given to a thread for two purposes 1. Frequent bobbin thread breakage. The advantages • Fewer needle breakages • Extremely tight adjustment of the hook or looper to the needle possible • Reduced risk of skipped stitches • Less thread splicing and thread breakage • Gentle treatment of the sewing … 5. The soft and elastic seams made with Active Thread Control offer the tunnel free finish preventing seam breakage. It is impossible to reduce the length of double thread chain stitch to 0,5 mm, to improve the reliability of backtack the end of a chain seam from unraveling. As there is a Cliffscarf, the hook and the looper c an catch thread even imperfect loops. Good lubricity characteristics will minimize thread breakage and enhance sew ability. The expertly engineered tension control in the Merrow Hosiery machines minimizes yarn breakage and produces a superior stitch. 1. I have recently run into tension trouble sewing with a twin needle using different types of thread. the hook or looper to be adjusted extremely tight to the needle, providing optimum protection for the sewing thread. On a general note. Traditional tension dial machines may need an extra tug to ensure thread is in the tension. 2. Check your needle and thread: As we already mentioned, using the right size and type of needle is imperative. … 3. Web sling acc. Thicker Thread Fabric Yarn Breakage Inside Down comes out Needle Line [Protrusion] Button Breakage ... TROUBLE SOLUTION COUNTERMEASURE NEEDLE. If the bobbin is not correctly wound, rewind the bobbin. Tunnel Free Finish, Comfortable to Wear. 3 Threading the right looper: Thread the right looper in sequence 1 to 9 and pull approximately 10 cm (4”) 4 of thread through the looper eye (the thread path is … 200% plus stretch! to DIN EN 1492-1 Tie-down acc. If this is the case, the looper should be polished or exchanged. 23. It is also necessary to make provision for possible thread wastage (usually 15%) while calculating thread consumption. 602 2 needle, 1 looper & 1 top spreader thread 605 3 needle, 1 looper & 1 top spreader thread 606 4 needle, 4 loopers & 1 top spreader thread 607 4 needle, 1 looper & 1 top spreader thread Usually spun polyester or texturized polyester/nylon threads are used on these machines. Common Sewing Problems Causes and Remedies There can be many reasons behind the problems that arise while sewing and knowing the cause of these problems and a solution for each particular cause is essential. Looper, Hook, Supplementary Thread Carrier: 1 Upper Looper (eye), 1 Lower Looper (eye) ... Our experience and know-how offer you a proven solution. Texturing filaments gives the yarn more cover and high extensibility, but makes the thread more subject to snagging. Of … I see so many people with thread wound tightly around a too-big spool cap. who in 2020 invented the new ZARIF technology of forming a double thread chain stitch using a rotary looper, which in the 21st century made a breakthrough in sewing various materials using a single -line thread seam, answers the questions of Ms.Paulami Chatterjee from Fibre2Fashion Pvt. Disengage clip lever. Overlockers are renowned for being difficult to thread. If the lower looper thread breaks this is the second thread that you would thread when threading in the correct order. Frequent thread breakage: The frequent thread breakage during sewing is the wastage of valuable time and it is harmful for production. This is the number ONE cause of thread breakage. al sewing the needle thread loop can “tip over” causing thread breakage or thread ravelling. It may be that for your particular machine you need to thread the start of the looper, pass the thread through the machine and use the balance wheel to get the other end of the looper showing. For machines with an easy clip-up lever, thread the two hooks that appear and then the looper. Here’s a close-up of a strand of Polyarn (top) and some all-purpose thread for comparison: When you are threading textured thread in the looper, skip thread guide #2 and the second part of thread guide #3. The tension should be adjusted to the bobbin threads. Check that the bobbin is wound so that it about 80% full and that the thread is evenly wound. Some Faults and Solutions During the Operation of the Sewing Machine, YongkangTeli Packing Machinery Co., Ltd. High streatch seaming prevents seam breakage. For some reason, lowering the looper tension, not just the needle thread tension, reduces needle thread breakage. 02 Excessive tension to the bobbin threads. Michaels Arts & Crafts supply store Location at 501 1st Ave S Ste Y07, Lethbridge, ALBERTA. Proper winding of threads on to the bobbin. Adjust the lower thread tension. 03 If the edges bobbin case, looper eye and so on are more sharpened. Estimated looper thread: 6.73 X 60% = 4.04 yds Note: Stitch density, stitch / seam chioce, variations in style, fabric thickness and number of plies are factors that can affect thread consumption. Zarif Sewing Machine Co. Ltd. was founded by Zarif Sharifovich Tadjibaev in 1994 when Tadjibaev invented a new double thread chain stitch technology. 7) Try a different spool orientation. Using Online Resource or Software: Open the front cover by sliding to the right and guiding the top toward you. These problems can be minimised by avoiding errors during handling of materials / machines and by following the right working methods. Causes Remedies 01 Incorrect winding of threads on to the bobbin. thread twist. 4. The most common and mostly used type of stitch of this class is stitch type – 401 which is produced by one needle thread and one looper thread. LOWER LOOPER: Thread First From The Right (Green Tension Dial) Continue threading your lower looper thread by its colour coded markers. RevolutionAir™ Threading - Instant looper & needle threading The patented RevolutionAir™ Threading system is Baby Lock’s flagship threading solution – letting you completely thread all loopers and needles faster and easier than ever before. On an overlocker each thread not only has its own tensioner, but also its own guides – a completely separate path down to the needle or looper. - The 3-thread overedge seam is - described on page 17. How to thread the upper looper. If your spool is on a horizontal spool pin, I’d recommend using the smallest spool cap possible, or switching to and industrial thread lift. 4-thread overedge seam This seam is sewn with two needle 2 1 threads and two looper threads. Additionally, you should use high-quality thread -- it will have a nice, smooth filament and not be "fuzzy" or uneven in thickness. Total Needle thread = 100 cm x 1.3 = 130 cm Total Looper thread = 100 cm x 4.1 = 410 cm Total thread consumed = 130 + 410 = 540 cm Add 15% wastage* = 540 cm x 1.15 = 621 cm *Generally, 10% to 15% wastage of thread is added to the consumption derived. Problems of fabric distortion known as pucker or pucker problem. Clear your thread path. 2-thread overlock stitches are sewn using one needle thread and the lower looper thread. 5. Needle strikes can lead to ridges in the looper. 2-thread overlock converter Engaging Turn off the main power switch and unplug the machine. On sergers, the subsidiary looper is a frequent offender, causing upper looper thread breaks as well as keeping the upper looper stitches from forming correctly. Specially, it is very much troublesome and laborious task, if the sewing opens due to the breaking of thread, and it is required to … The thread does not roll out of the bobbin case smoothly. The bobbin thread is not wound correctly. ★Looper thread breakage ★fabric jam cause and solutions po grade 7 1 See answer caiyeng caiyeng Answer: Causes: *Thread trap at thread guide *Incorrect sewing tension in needle or under thread ... at tig isang solution/remedies din New questions in Technology and Home Economics. It is required to adjust the thread tension when sewing different materials. Mercerizing: Refers to a process where 100% cotton thread is treated under tension in a solution of caustic soda, which removes some of the sugars and makes the cotton fibers more uniform. If the needle weight is too thin, the eye might be too tight. 6. The thread density of the embroidery data is too fine. Thread the needles after the lower looper and upper looper have been threaded. Page 54: Thread Breakage During Sewing Practical Sewing - Overlock / Overlock Praktisches Nähen Практическое шитье / Overlock naaien in de praktijk Thread breakage during sewing Sew off immediately at an angle and remove the work. • The special thread guiding area reduces the risk of thread unwinding. If the upper or lower looper thread breaks during sewing, re-thread- ing is necessary. to DIN EN 1492-2 Cargo belt acc. Bobbin or looped thread breakage: SL No. 2. Here one group of thread is called needle thread and the other is called looper thread. Run the thread in the sequence illustrated, following the pink color and the numbers next to each threading point. Skipped Stitches ... deflection is dramatically reduced in high-speed sewing conditions. When sewing may occur breakage of the threads. 19. 130 built-in … Vous magasinez à partir d'un endroit à l'extérieur de notre territoire de livraison (Nunavut, Territoires du Nord-Ouest, Yukon).